London Event
It should be relocated at London Event because it's the same event.
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The Battle of Covent Garden was a fight that took place between the British Army and the robot Yeti of the Great Intelligence around 40 years after 1935.
The battle was the result of a two-pronged operation with the intent to retrieve the Second Doctor's TARDIS from the web fungus in the London Underground. Colonel Lethbridge-Stewart and seven other soldiers were ambushed by Yeti at Covent Garden as they attempted to reach the TARDIS from the surface. Although they managed to destroy a number of the robots, the soldiers were vastly outnumbered and soon ran out of ammunition. Only Colonel Lethbridge-Stewart, having lost all seven of his men, including Corporal Blake, made it back to HQ alive. (TV: The Web of Fear)